add lxc template generator

nixos/common/generic-vm.nix

@@ -1,4 +1,5 @@
 { lib, ... }: {
+
   # The global useDHCP flag is deprecated, therefore explicitly set to false here.
   # Per-interface useDHCP will be mandatory in the future, so this generated config
   # replicates the default behaviour.

nixos/lxc-template.nix

@@ -0,0 +1,17 @@
+{ config, pkgs, lib, ... }: {
+  # Can't import common completely due to infinite recursion
+  imports = [ ./common/users ./common/generic-lxc.nix ];
+
+  # Enable SSH
+  services.openssh = {
+    enable = true;
+    passwordAuthentication = false;
+    permitRootLogin = "yes";
+  };
+
+  time.timeZone = lib.mkDefault "Europe/Amsterdam";
+
+  networking.interfaces.eth0.useDHCP = true;
+
+  system.stateVersion = "22.11";
+}

nixos/util.nix

@@ -1,7 +1,6 @@
 { nixpkgs, home-manager, hyprland, mailserver, ... }:
 let
-  inherit (nixpkgs) lib;
-  inherit (builtins) filter mapAttrs attrValues concatLists;
+  inherit (builtins) filter attrValues concatLists;
 
   # Helper function to resolve what should be imported depending on the type of config (lxc, vm, bare metal)
   resolve_imports =